648 lines
24 KiB
C
648 lines
24 KiB
C
/**
|
|
* this case is used for test PCNT
|
|
* prepare job for test environment UT_T1_PCNT:
|
|
* 1. prepare one ESP-WROOM-32 board and connect it to PC.
|
|
* 2. connect GPIO18 with GPIO4
|
|
* 3. GPIO5 connect to 3.3v
|
|
* 4. GPIO19 connect to GND
|
|
* 5. logic analyzer will help too if possible
|
|
*
|
|
* the GPIO18 is the pulse producer, the GPIO4 is the input GPIO
|
|
*/
|
|
#include <stdio.h>
|
|
#include "freertos/FreeRTOS.h"
|
|
#include "freertos/portmacro.h"
|
|
#include "freertos/task.h"
|
|
#include "freertos/queue.h"
|
|
#include "driver/periph_ctrl.h"
|
|
#include "driver/gpio.h"
|
|
#include "driver/pcnt.h"
|
|
#include "driver/ledc.h"
|
|
#include "esp_attr.h"
|
|
#include "esp_log.h"
|
|
#include "soc/gpio_sig_map.h"
|
|
#include "unity.h"
|
|
#include "rom/ets_sys.h"
|
|
|
|
#define PULSE_IO 18
|
|
#define PCNT_INPUT_IO 4
|
|
#define PCNT_CTRL_FLOATING_IO 5
|
|
#define PCNT_CTRL_GND_IO 19
|
|
#define HIGHEST_LIMIT 10
|
|
#define LOWEST_LIMIT 0
|
|
#define MAX_THRESHOLD 5
|
|
#define MIN_THRESHOLD 0
|
|
|
|
static xQueueHandle pcnt_evt_queue;
|
|
|
|
typedef struct {
|
|
int zero_times;
|
|
int h_limit;
|
|
int l_limit;
|
|
int h_threshold;
|
|
int l_threshold;
|
|
int filter_time;
|
|
} event_times;
|
|
|
|
/* use LEDC to produce pulse for PCNT
|
|
* the frequency of LEDC is 1000, so every second will get 1000 count values
|
|
* the PCNT count the LEDC pulse
|
|
* */
|
|
static void produce_pulse(void)
|
|
{
|
|
ledc_timer_config_t ledc_timer = {
|
|
.speed_mode = LEDC_HIGH_SPEED_MODE,
|
|
.timer_num = LEDC_TIMER_1,
|
|
.duty_resolution = LEDC_TIMER_10_BIT,
|
|
.freq_hz = 1,
|
|
};
|
|
ledc_timer_config(&ledc_timer);
|
|
|
|
ledc_channel_config_t ledc_channel = {
|
|
.speed_mode = LEDC_HIGH_SPEED_MODE,
|
|
.channel = LEDC_CHANNEL_1,
|
|
.timer_sel = LEDC_TIMER_1,
|
|
.intr_type = LEDC_INTR_DISABLE,
|
|
.gpio_num = PULSE_IO,
|
|
.duty = 100,
|
|
.hpoint = 0,
|
|
};
|
|
ledc_channel_config(&ledc_channel);
|
|
}
|
|
|
|
static void IRAM_ATTR pcnt_intr_handler(void *arg)
|
|
{
|
|
uint32_t intr_status = PCNT.int_st.val;
|
|
int i;
|
|
uint32_t status;
|
|
BaseType_t port_status = pdFALSE;
|
|
|
|
for (i = 0; i < PCNT_UNIT_MAX; i++) {
|
|
if (intr_status & (BIT(i))) {
|
|
status = PCNT.status_unit[i].val;
|
|
PCNT.int_clr.val = BIT(i);
|
|
xQueueSendFromISR(pcnt_evt_queue, &status, &port_status);
|
|
if (port_status == pdTRUE) {
|
|
portYIELD_FROM_ISR();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void event_calculate(event_times* event)
|
|
{
|
|
int16_t test_counter = 0;
|
|
int times = 0;
|
|
BaseType_t port_status;
|
|
uint32_t status = 0;
|
|
while (times < 10) {
|
|
port_status = xQueueReceive(pcnt_evt_queue, &status, 1000 / portTICK_PERIOD_MS);
|
|
if (port_status == pdTRUE) {
|
|
event->filter_time++;
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("Current counter value :%d\n", test_counter);
|
|
if (status & PCNT_STATUS_THRES1_M) {
|
|
printf("THRES1 EVT\n");
|
|
event->h_threshold++;
|
|
}
|
|
if (status & PCNT_STATUS_THRES0_M) {
|
|
printf("THRES0 EVT\n");
|
|
event->l_threshold++;
|
|
}
|
|
if (status & PCNT_STATUS_L_LIM_M) {
|
|
printf("L_LIM EVT\n");
|
|
event->l_limit++;
|
|
}
|
|
if (status & PCNT_STATUS_H_LIM_M) {
|
|
printf("H_LIM EVT\n");
|
|
event->h_limit++;
|
|
}
|
|
if (status & PCNT_STATUS_ZERO_M) {
|
|
printf("ZERO EVT\n");
|
|
event->zero_times++;
|
|
}
|
|
} else {
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("Current counter value :%d\n", test_counter);
|
|
}
|
|
times++;
|
|
}
|
|
printf("%d, %d, %d, %d, %d, %d\n", event->h_threshold, event->l_threshold,
|
|
event->l_limit, event->h_limit, event->zero_times, event->filter_time);
|
|
}
|
|
|
|
/*
|
|
* There exist 2 kind of counting methods: positive and negative counting method
|
|
* 1. when control IO is high level, PCNT is positive counting mode
|
|
* 2. when control IO is low level, PCNT is positive negative mode
|
|
* the positive method standard is as below:
|
|
* ----------------------------------------------------------------------------------
|
|
* POS_ MODE | LCTRL_ MODE | HCTRL_ MODE | sig l→h when ctrl=0 | sig l→h when ctrl=1
|
|
* NEG_ MODE | | | |
|
|
* ===================================================================================
|
|
* 1 (inc) | 0 (-) | 0 (-) | Inc ctr | Inc ctr
|
|
* 2 (dec) | 0 (-) | 0 (-) | Dec ctr | Dec ctr
|
|
* 0 (-) | x | x | No action | No action
|
|
* 1 (inc) | 0 (-) | 1 (inv) | Inc ctr | Dec ctr
|
|
* 1 (inc) | 1 (inv) | 0 (-) | Dec ctr | Inc ctr
|
|
* 2 (dec) | 0 (-) | 1 (inv) | Dec ctr | Inc ctr
|
|
* 1 (inc) | 0 (-) | 2 (dis) | Inc ctr | No action
|
|
* 1 (inc) | 2 (dis) | 0 (-) | No action | Inc ctr
|
|
* -----------------------------------------------------------------------------------
|
|
* */
|
|
|
|
static void count_mode_test(gpio_num_t ctl_io)
|
|
{
|
|
int16_t test_counter;
|
|
//produce pulse, 100HZ
|
|
ledc_timer_config_t ledc_timer = {
|
|
.speed_mode = LEDC_HIGH_SPEED_MODE,
|
|
.timer_num = LEDC_TIMER_1,
|
|
.duty_resolution = LEDC_TIMER_10_BIT,
|
|
.freq_hz = 100,
|
|
};
|
|
ledc_timer_config(&ledc_timer);
|
|
|
|
ledc_channel_config_t ledc_channel = {
|
|
.speed_mode = LEDC_HIGH_SPEED_MODE,
|
|
.channel = LEDC_CHANNEL_1,
|
|
.timer_sel = LEDC_TIMER_1,
|
|
.intr_type = LEDC_INTR_DISABLE,
|
|
.gpio_num = PULSE_IO,
|
|
.duty = 100,
|
|
.hpoint = 0,
|
|
};
|
|
ledc_channel_config(&ledc_channel);
|
|
|
|
pcnt_config_t pcnt_config = {
|
|
.pulse_gpio_num = PCNT_INPUT_IO,
|
|
.ctrl_gpio_num = ctl_io,
|
|
.channel = PCNT_CHANNEL_0,
|
|
.unit = PCNT_UNIT_0,
|
|
.pos_mode = PCNT_COUNT_INC,
|
|
.neg_mode = PCNT_COUNT_DIS,
|
|
.lctrl_mode = PCNT_MODE_REVERSE,
|
|
.hctrl_mode = PCNT_MODE_KEEP,
|
|
.counter_h_lim = 101,
|
|
.counter_l_lim = -101,
|
|
};
|
|
TEST_ESP_OK(pcnt_unit_config(&pcnt_config));
|
|
int16_t result1[8] = {100, -100, 0, -100, 100, 100, 0, 100};
|
|
int16_t result2[8] = {100, -100, 0, 100, -100, -100, 100, 0};
|
|
int16_t *result;
|
|
if (gpio_get_level(pcnt_config.ctrl_gpio_num)) {
|
|
result = result1;
|
|
} else {
|
|
result = result2;
|
|
}
|
|
|
|
// 1, 0, 0, 0
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_set_mode(PCNT_UNIT_0, PCNT_CHANNEL_0,
|
|
PCNT_COUNT_INC, PCNT_COUNT_DIS,
|
|
PCNT_MODE_KEEP, PCNT_MODE_KEEP));
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
vTaskDelay(1000 / portTICK_RATE_MS);
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("value: %d\n", test_counter);
|
|
TEST_ASSERT_INT16_WITHIN(1, test_counter, result[0]);
|
|
|
|
//2, 0, 0, 0
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_set_mode(PCNT_UNIT_0, PCNT_CHANNEL_0,
|
|
PCNT_COUNT_DEC, PCNT_COUNT_DIS,
|
|
PCNT_MODE_KEEP, PCNT_MODE_KEEP));
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
vTaskDelay(1000 / portTICK_RATE_MS);
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("value: %d\n", test_counter);
|
|
TEST_ASSERT_INT16_WITHIN(1, test_counter, result[1]);
|
|
|
|
//0,0,0,0
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_set_mode(PCNT_UNIT_0, PCNT_CHANNEL_0,
|
|
PCNT_COUNT_DIS, PCNT_COUNT_DIS,
|
|
PCNT_MODE_KEEP, PCNT_MODE_KEEP));
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
vTaskDelay(1000 / portTICK_RATE_MS);
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("value: %d\n", test_counter);
|
|
TEST_ASSERT_INT16_WITHIN(1, test_counter, result[2]);
|
|
|
|
//1,0,1,0
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_set_mode(PCNT_UNIT_0, PCNT_CHANNEL_0,
|
|
PCNT_COUNT_INC, PCNT_COUNT_DIS,
|
|
PCNT_MODE_REVERSE, PCNT_MODE_KEEP));
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
vTaskDelay(1000 / portTICK_RATE_MS);
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("value: %d\n", test_counter);
|
|
TEST_ASSERT_INT16_WITHIN(1, test_counter, result[3]);
|
|
|
|
//1,0,0,1
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_set_mode(PCNT_UNIT_0, PCNT_CHANNEL_0,
|
|
PCNT_COUNT_INC, PCNT_COUNT_DIS,
|
|
PCNT_MODE_KEEP, PCNT_MODE_REVERSE));
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
vTaskDelay(1000 / portTICK_RATE_MS);
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("value: %d\n", test_counter);
|
|
TEST_ASSERT_INT16_WITHIN(1, test_counter, result[4]);
|
|
|
|
//2,0,0,1
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_set_mode(PCNT_UNIT_0, PCNT_CHANNEL_0,
|
|
PCNT_COUNT_DEC, PCNT_COUNT_DIS,
|
|
PCNT_MODE_REVERSE, PCNT_MODE_KEEP));
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
vTaskDelay(1000 / portTICK_RATE_MS);
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("value: %d\n", test_counter);
|
|
TEST_ASSERT_INT16_WITHIN(1, test_counter, result[5]);
|
|
|
|
//1,0,2,0
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_set_mode(PCNT_UNIT_0, PCNT_CHANNEL_0,
|
|
PCNT_COUNT_INC, PCNT_COUNT_DIS,
|
|
PCNT_MODE_DISABLE, PCNT_MODE_KEEP));
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
vTaskDelay(1000 / portTICK_RATE_MS);
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("value: %d\n", test_counter);
|
|
TEST_ASSERT_INT16_WITHIN(1, test_counter, result[6]);
|
|
|
|
//1,0,0,2
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_set_mode(PCNT_UNIT_0, PCNT_CHANNEL_0,
|
|
PCNT_COUNT_INC, PCNT_COUNT_DIS,
|
|
PCNT_MODE_KEEP, PCNT_MODE_DISABLE));
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
vTaskDelay(1000 / portTICK_RATE_MS);
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("value: %d\n", test_counter);
|
|
TEST_ASSERT_INT16_WITHIN(1, test_counter, result[7]);
|
|
}
|
|
|
|
// test PCNT basic configuration
|
|
TEST_CASE("PCNT test config", "[pcnt][test_env=UT_T1_PCNT]")
|
|
{
|
|
pcnt_config_t pcnt_config = {
|
|
.pulse_gpio_num = PCNT_INPUT_IO,
|
|
.ctrl_gpio_num = PCNT_CTRL_FLOATING_IO,
|
|
.channel = PCNT_CHANNEL_0,
|
|
.unit = PCNT_UNIT_0,
|
|
.pos_mode = PCNT_COUNT_INC,
|
|
.neg_mode = PCNT_COUNT_DIS,
|
|
.lctrl_mode = PCNT_MODE_REVERSE,
|
|
.hctrl_mode = PCNT_MODE_KEEP,
|
|
.counter_h_lim = 100,
|
|
.counter_l_lim = 0,
|
|
};
|
|
// basic configuration
|
|
pcnt_config_t temp_pcnt_config = pcnt_config;
|
|
TEST_ESP_OK(pcnt_unit_config(&pcnt_config));
|
|
|
|
// test 8 units, from 0-7
|
|
pcnt_config = temp_pcnt_config;
|
|
pcnt_config.unit = PCNT_UNIT_MAX;
|
|
TEST_ASSERT_NOT_NULL((void *)pcnt_unit_config(&pcnt_config));
|
|
for (int i = 0; i <= 7; i++) {
|
|
pcnt_config.unit = i;
|
|
TEST_ESP_OK(pcnt_unit_config(&pcnt_config));
|
|
}
|
|
|
|
// test channels
|
|
pcnt_config = temp_pcnt_config;
|
|
pcnt_config.channel = PCNT_CHANNEL_MAX;
|
|
TEST_ASSERT_NOT_NULL((void *)pcnt_unit_config(&pcnt_config));
|
|
pcnt_config = temp_pcnt_config;
|
|
pcnt_config.pulse_gpio_num = -1;
|
|
TEST_ESP_OK(pcnt_unit_config(&pcnt_config));
|
|
|
|
pcnt_config = temp_pcnt_config;
|
|
pcnt_config.pulse_gpio_num = 41;
|
|
TEST_ASSERT_NOT_NULL((void *)pcnt_unit_config(&pcnt_config));
|
|
|
|
// test pulse_gpio_num and ctrl_gpio_num is the same
|
|
pcnt_config = temp_pcnt_config;
|
|
pcnt_config.pulse_gpio_num = PCNT_INPUT_IO;
|
|
pcnt_config.ctrl_gpio_num = PCNT_INPUT_IO;
|
|
TEST_ASSERT_NOT_NULL((void *)pcnt_unit_config(&pcnt_config));
|
|
|
|
pcnt_config = temp_pcnt_config;
|
|
pcnt_config.pos_mode = PCNT_COUNT_MAX;
|
|
TEST_ASSERT_NOT_NULL((void *)pcnt_unit_config(&pcnt_config));
|
|
|
|
pcnt_config = temp_pcnt_config;
|
|
pcnt_config.hctrl_mode = PCNT_MODE_MAX;
|
|
TEST_ASSERT_NOT_NULL((void *)pcnt_unit_config(&pcnt_config));
|
|
|
|
pcnt_config = temp_pcnt_config;
|
|
pcnt_config.lctrl_mode = PCNT_MODE_MAX;
|
|
TEST_ASSERT_NOT_NULL((void *)pcnt_unit_config(&pcnt_config));
|
|
}
|
|
|
|
/* PCNT basic property:
|
|
* 1. pause counter
|
|
* 2. resume counter
|
|
* 3. clear counter
|
|
* 4. check the counter value*/
|
|
TEST_CASE("PCNT basic function test", "[pcnt][test_env=UT_T1_PCNT]")
|
|
{
|
|
int16_t test_counter;
|
|
int16_t time = 0;
|
|
int clear_count = 0;
|
|
int resume_count = 0;
|
|
int temp_value = 0;
|
|
pcnt_config_t pcnt_config = {
|
|
.pulse_gpio_num = PCNT_INPUT_IO,
|
|
.ctrl_gpio_num = PCNT_CTRL_FLOATING_IO,
|
|
.channel = PCNT_CHANNEL_0,
|
|
.unit = PCNT_UNIT_0,
|
|
.pos_mode = PCNT_COUNT_INC,
|
|
.neg_mode = PCNT_COUNT_DIS,
|
|
.lctrl_mode = PCNT_MODE_REVERSE,
|
|
.hctrl_mode = PCNT_MODE_KEEP,
|
|
.counter_h_lim = 10,
|
|
.counter_l_lim = -10,
|
|
};
|
|
TEST_ESP_OK(pcnt_unit_config(&pcnt_config));
|
|
|
|
// use LEDC to produce the pulse, then the PCNT to count it
|
|
produce_pulse();
|
|
|
|
// initialize first, the initail value should be 0
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
TEST_ASSERT_EQUAL_INT16(test_counter, 0);
|
|
|
|
// resume the PCNT
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
TEST_ASSERT_EQUAL_INT16(test_counter, 0);
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
TEST_ASSERT_EQUAL_INT16(test_counter, 0);
|
|
|
|
//count now
|
|
while (time != 10) {
|
|
vTaskDelay(1001 / portTICK_RATE_MS); // in case of can't wait to get counter(edge effect)
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("COUNT: %d\n", test_counter);
|
|
TEST_ASSERT_NOT_EQUAL(test_counter, temp_value);
|
|
temp_value = test_counter;
|
|
|
|
if (test_counter == 5 || test_counter == -5) {
|
|
//test clear
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
TEST_ASSERT_EQUAL_INT16(test_counter, 0);
|
|
clear_count++;
|
|
}
|
|
if (test_counter == 0) {
|
|
//test pause
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
vTaskDelay(1000 / portTICK_RATE_MS);
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("PAUSE: %d\n", test_counter);
|
|
TEST_ASSERT_EQUAL_INT16(test_counter, 0);
|
|
|
|
// test resume
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
vTaskDelay(1000 / portTICK_RATE_MS);
|
|
TEST_ESP_OK(pcnt_get_counter_value(PCNT_UNIT_0, &test_counter));
|
|
printf("RESUME: %d\n", test_counter);
|
|
TEST_ASSERT_EQUAL_INT16(test_counter, (gpio_get_level(PCNT_CTRL_FLOATING_IO) > 0) ? (1) : -1);
|
|
resume_count++;
|
|
}
|
|
time++;
|
|
}
|
|
TEST_ASSERT_EQUAL_INT16(clear_count, 2);
|
|
TEST_ASSERT_EQUAL_INT16(resume_count, 2);
|
|
}
|
|
|
|
/**
|
|
* there are 4 situations will be tested:
|
|
* 1. set event to interrupt triggered
|
|
* 2. disable interrupt to stop triggering interrupt
|
|
* 3. enable interrupt to interrupt triggered again
|
|
* 4. disable event to stop triggering interrupt
|
|
*
|
|
* PCNT interrupt type:
|
|
* 1. PCNT_EVT_THRES_1
|
|
* 2. PCNT_EVT_THRES_0
|
|
* 3. PCNT_EVT_ZERO
|
|
* 4. PCNT_EVT_H_LIM
|
|
* 5. PCNT_EVT_L_LIM
|
|
* */
|
|
TEST_CASE("PCNT interrupt method test(control IO is high)", "[pcnt][test_env=UT_T1_PCNT][timeout=120]")
|
|
{
|
|
pcnt_config_t config = {
|
|
.pulse_gpio_num = PCNT_INPUT_IO,
|
|
.ctrl_gpio_num = PCNT_CTRL_FLOATING_IO,
|
|
.channel = PCNT_CHANNEL_0,
|
|
.unit = PCNT_UNIT_0,
|
|
.pos_mode = PCNT_COUNT_INC,
|
|
.neg_mode = PCNT_COUNT_DIS,
|
|
.lctrl_mode = PCNT_MODE_REVERSE,
|
|
.hctrl_mode = PCNT_MODE_KEEP,
|
|
.counter_h_lim = 5,
|
|
.counter_l_lim = 0,
|
|
};
|
|
TEST_ESP_OK(pcnt_unit_config(&config));
|
|
produce_pulse();
|
|
|
|
event_times event = {
|
|
.zero_times = 0,
|
|
.h_limit = 0,
|
|
.l_limit = 0,
|
|
.h_threshold = 0,
|
|
.l_threshold = 0,
|
|
.filter_time = 0,
|
|
};
|
|
|
|
//interrupt set
|
|
TEST_ESP_OK(pcnt_set_filter_value(PCNT_UNIT_0, 2));
|
|
TEST_ESP_OK(pcnt_filter_enable(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_set_event_value(PCNT_UNIT_0, PCNT_EVT_THRES_1, 4)); // when arrive to max threshold trigger
|
|
TEST_ESP_OK(pcnt_event_enable(PCNT_UNIT_0, PCNT_EVT_THRES_1));
|
|
TEST_ESP_OK(pcnt_set_event_value(PCNT_UNIT_0, PCNT_EVT_THRES_0, 1)); // when arrive to minimum threshold trigger
|
|
TEST_ESP_OK(pcnt_event_enable(PCNT_UNIT_0, PCNT_EVT_THRES_0));
|
|
TEST_ESP_OK(pcnt_event_enable(PCNT_UNIT_0, PCNT_EVT_ZERO));
|
|
TEST_ESP_OK(pcnt_event_enable(PCNT_UNIT_0, PCNT_EVT_H_LIM)); // when arrive to max limit trigger
|
|
TEST_ESP_OK(pcnt_event_enable(PCNT_UNIT_0, PCNT_EVT_L_LIM)); // when arrive to minimum limit trigger
|
|
|
|
// to initialize for PCNT
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
|
|
TEST_ESP_OK(pcnt_isr_register(pcnt_intr_handler, NULL, 0, NULL));
|
|
TEST_ESP_OK(pcnt_intr_enable(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
|
|
pcnt_evt_queue = xQueueCreate(10, sizeof(uint32_t));
|
|
|
|
// test event
|
|
event_calculate(&event);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_threshold, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_threshold, 2);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_limit, 0);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_limit, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.zero_times, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.filter_time, 4);
|
|
|
|
// test interrupt disable
|
|
TEST_ESP_OK(pcnt_intr_disable(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
// for the original control io disable interrupt status
|
|
event_calculate(&event);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_threshold, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_threshold, 2);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_limit, 0);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_limit, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.zero_times, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.filter_time, 4);
|
|
|
|
// enable the intr
|
|
TEST_ESP_OK(pcnt_intr_enable(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
event_calculate(&event);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_threshold, 2);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_threshold, 3);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_limit, 0);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_limit, 3);
|
|
TEST_ASSERT_INT_WITHIN(2, event.zero_times, 3);
|
|
TEST_ASSERT_INT_WITHIN(2, event.filter_time, 10);
|
|
|
|
// disable part of events
|
|
TEST_ESP_OK(pcnt_event_disable(PCNT_UNIT_0, PCNT_EVT_ZERO));
|
|
TEST_ESP_OK(pcnt_event_disable(PCNT_UNIT_0, PCNT_EVT_L_LIM));
|
|
TEST_ESP_OK(pcnt_event_disable(PCNT_UNIT_0, PCNT_EVT_THRES_0));
|
|
event_calculate(&event);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_threshold, 3);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_threshold, 4);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_limit, 0);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_limit, 4);
|
|
TEST_ASSERT_INT_WITHIN(2, event.zero_times, 3);
|
|
TEST_ASSERT_INT_WITHIN(2, event.filter_time, 12);
|
|
|
|
pcnt_isr_service_uninstall();
|
|
}
|
|
|
|
TEST_CASE("PCNT interrupt method test(control IO is low)", "[pcnt][test_env=UT_T1_PCNT][timeout=120]")
|
|
{
|
|
pcnt_config_t config = {
|
|
.pulse_gpio_num = PCNT_INPUT_IO,
|
|
.ctrl_gpio_num = PCNT_CTRL_GND_IO,
|
|
.channel = PCNT_CHANNEL_0,
|
|
.unit = PCNT_UNIT_0,
|
|
.pos_mode = PCNT_COUNT_INC,
|
|
.neg_mode = PCNT_COUNT_DIS,
|
|
.lctrl_mode = PCNT_MODE_REVERSE,
|
|
.hctrl_mode = PCNT_MODE_KEEP,
|
|
.counter_h_lim = 0,
|
|
.counter_l_lim = -5,
|
|
};
|
|
|
|
TEST_ESP_OK(pcnt_unit_config(&config));
|
|
produce_pulse();
|
|
|
|
event_times event = {
|
|
.zero_times = 0,
|
|
.h_limit = 0,
|
|
.l_limit = 0,
|
|
.h_threshold = 0,
|
|
.l_threshold = 0,
|
|
.filter_time = 0,
|
|
};
|
|
|
|
//interrupt set
|
|
TEST_ESP_OK(pcnt_set_filter_value(PCNT_UNIT_0, 2));
|
|
TEST_ESP_OK(pcnt_filter_enable(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_set_event_value(PCNT_UNIT_0, PCNT_EVT_THRES_1, -4)); // when arrive to max threshold trigger
|
|
TEST_ESP_OK(pcnt_event_enable(PCNT_UNIT_0, PCNT_EVT_THRES_1));
|
|
TEST_ESP_OK(pcnt_set_event_value(PCNT_UNIT_0, PCNT_EVT_THRES_0, 0)); // when arrive to minimum threshold trigger
|
|
TEST_ESP_OK(pcnt_event_enable(PCNT_UNIT_0, PCNT_EVT_THRES_0));
|
|
TEST_ESP_OK(pcnt_event_enable(PCNT_UNIT_0, PCNT_EVT_ZERO));
|
|
TEST_ESP_OK(pcnt_event_enable(PCNT_UNIT_0, PCNT_EVT_H_LIM)); // when arrive to max limit trigger
|
|
TEST_ESP_OK(pcnt_event_enable(PCNT_UNIT_0, PCNT_EVT_L_LIM)); // when arrive to minimum limit trigger
|
|
|
|
// to initialize for PCNT
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
|
|
TEST_ESP_OK(pcnt_isr_register(pcnt_intr_handler, NULL, 0, NULL));
|
|
TEST_ESP_OK(pcnt_intr_enable(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
|
|
pcnt_evt_queue = xQueueCreate(10, sizeof(uint32_t));
|
|
|
|
// test event
|
|
event_calculate(&event);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_threshold, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_threshold, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_limit, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_limit, 0);
|
|
TEST_ASSERT_INT_WITHIN(2, event.zero_times, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.filter_time, 2);
|
|
|
|
// test interrupt disable
|
|
TEST_ESP_OK(pcnt_intr_disable(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
// for the original control io disable interrupt status
|
|
event_calculate(&event);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_threshold, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_threshold, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_limit, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_limit, 0);
|
|
TEST_ASSERT_INT_WITHIN(2, event.zero_times, 1);
|
|
TEST_ASSERT_INT_WITHIN(2, event.filter_time, 2);
|
|
|
|
// enable the intr
|
|
pcnt_unit_config(&config);
|
|
TEST_ESP_OK(pcnt_intr_enable(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_pause(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_clear(PCNT_UNIT_0));
|
|
TEST_ESP_OK(pcnt_counter_resume(PCNT_UNIT_0));
|
|
event_calculate(&event);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_threshold, 2);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_threshold, 3);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_limit, 2);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_limit, 0);
|
|
TEST_ASSERT_INT_WITHIN(2, event.zero_times, 2);
|
|
TEST_ASSERT_INT_WITHIN(2, event.filter_time, 6);
|
|
|
|
// disable part of events
|
|
TEST_ESP_OK(pcnt_event_disable(PCNT_UNIT_0, PCNT_EVT_ZERO));
|
|
TEST_ESP_OK(pcnt_event_disable(PCNT_UNIT_0, PCNT_EVT_L_LIM));
|
|
TEST_ESP_OK(pcnt_event_disable(PCNT_UNIT_0, PCNT_EVT_THRES_0));
|
|
event_calculate(&event);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_threshold, 4);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_threshold, 3);
|
|
TEST_ASSERT_INT_WITHIN(2, event.l_limit, 2);
|
|
TEST_ASSERT_INT_WITHIN(2, event.h_limit, 0);
|
|
TEST_ASSERT_INT_WITHIN(2, event.zero_times, 2);
|
|
TEST_ASSERT_INT_WITHIN(2, event.filter_time, 8);
|
|
|
|
pcnt_isr_service_uninstall();
|
|
}
|
|
|
|
TEST_CASE("PCNT counting mode test", "[pcnt][test_env=UT_T1_PCNT]")
|
|
{
|
|
printf("PCNT mode test for positive count\n");
|
|
count_mode_test(PCNT_CTRL_FLOATING_IO);
|
|
printf("PCNT mode test for negative count\n");
|
|
count_mode_test(PCNT_CTRL_GND_IO);
|
|
}
|